I was going to post this later after I sleep, but something is keeping me up.

Well I'm a libertarian which means being socially liberal and fiscally conservative.

SPs are known to wanting freedom and their own space and I think the libertarian ideals suits their needs.

I never been into politics until I started attending college. I always been socially liberal due to my Swedish background. My major was in Business Economics and many of my classes showed videos of John Stossel from ABC covering issues about the business world. So naturally I became a libertarian.

Right now in American politics things are not going the way I want it to. The democrats are in power passing the stimulus bill and trying to get national healthcare. The republicans are acting like complete hypocrites. Passing farm subsidies act and not deregulated the government enough.

I'm an ISTP and a market anarchist. I don't know if that alignment is popular among ISTPs but I know some others libertarian ISTP and every are market anarchist. Clint Eastwood and John Malkovich are famous examples of libertarian ISTP, Kurt Russel and Richard Branson are famous examples of libertarian ESTP. By the way, ESTPs communicate their ideas spontaneously, and they're sometimes libertarians or almost, without know it. For xSFPs, I don't know.

SPs are known to wanting freedom and their own space

Yes, but to be libertarian implies to rely that leanings with a vision of a big picture in some sort and it's not the most natural area for SPs. Personnaly, I value my freedom and my own space above all else, and I've always been instinctively anarchist, but I'm an anarchist who loves have fun with money, so...

Elsewhere, I'm borderline INTP, and that can probably help. I'visit regulary a french libertarian forum, and a poll about MBTI reaveals that the forum members are NTs in a very high majority, and SPs is the less represented temperament (if all SPs have make the test and if the results are accurates though). I give you the link:Type De Personnalité Des Libéraux - Liberaux.org.